Chalk Line to mark straight strains on the roof to align mounting rails as well as other components. Wire Strippers/Cutters are made use of to get ready electrical wires by getting rid of insulation and slicing them to the right size. These are necessary to make Protected and protected connections. https://www.americanarraysolar.com/what-should-you-ask-a-solar-company-in-fremont-before-hiring-them/